US20050117062A1 - Device for automatic display adjustment - Google Patents

Device for automatic display adjustment Download PDF

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Publication number
US20050117062A1
US20050117062A1 US10/892,868 US89286804A US2005117062A1 US 20050117062 A1 US20050117062 A1 US 20050117062A1 US 89286804 A US89286804 A US 89286804A US 2005117062 A1 US2005117062 A1 US 2005117062A1
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United States
Prior art keywords
brightness
display device
display
signal value
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/892,868
Inventor
Tsan-Nan Chien
Yen-Chun Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quanta Computer Inc
Original Assignee
Quanta Computer Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quanta Computer Inc filed Critical Quanta Computer Inc
Assigned to QUANTA COMPUTER INC. reassignment QUANTA COMPUTER INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHANG, YEN-CHUN, CHIEN, TSAN-NAN
Publication of US20050117062A1 publication Critical patent/US20050117062A1/en
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H04N5/58—Control of contrast or brightness in dependence upon ambient light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42202—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region

Definitions

  • the present invention relates to a display device, and in particular to a device for automatic brightness and light contrast adjustment of a display.
  • Conventional display devices provide brightness and light contrast adjustment in response to an environment around the display devices. For example, the brightness and contrast of display should be increased when environmental brightness intensifies, and decreased, when diminishes.
  • FIG. 1 is a schematic diagram showing the architecture of a conventional display device.
  • the display device 100 receiving an image signal 110 comprises a control key 120 , a display control circuit 130 , a memory 140 , and a display module 150 .
  • FIG. 2 is a flowchart of display setting adjustment in a conventional display device.
  • step S 21 image signal 110 is retrieved from a video source and input to display device 100 .
  • step S 221 brightness and contrast of display device 100 are adjusted by control key 120 when image signal 110 is input.
  • step S 222 display settings are stored in memory 140 after brightness and contrast adjustment of display device 100 is complete.
  • step S 23 display control circuit 130 adjusts image signal 110 according to the display settings for an optimum display mode.
  • step S 24 the adjusted image is output to display module 150 .
  • a display device can be applied to a TV set, personal computer, portable computer, mobile phone, or LED billboard, wherein the display quality is affected by environmental brightness.
  • the described process relies on inconvenient manual adjustment and may not provide accurate results.
  • an object of the present invention is to provide a display device for automatic display adjustment, adjusting display settings in accordance with environmental brightness.
  • an embodiment of the present invention provides a display device with automatic display adjustment.
  • the device comprises at least one brightness sensor detecting environmental brightness, and a display control circuit processing brightness signals received from the brightness sensor and automatically adjusting display settings of a display device accordingly.
  • the display control circuit records, compares, and evaluates the brightness signals and adjusts the display settings of the display device accordingly.
  • the device further comprises a storage medium storing display settings and received brightness signal values.
  • An embodiment of the present invention further provides a display device with automatic display adjustment.
  • the device comprises at least one brightness sensor detecting environmental brightness to obtain an initial brightness signal value and continuing to detect environmental brightness to obtain a first brightness signal value, and a display control circuit comparing the initial brightness signal value with the first brightness signal value when environmental brightness changes, and automatically adjusting display settings of a display device accordingly.
  • the device further comprises a storage medium storing display settings and received brightness signal values.
  • FIG. 1 is a schematic diagram showing the architecture of a conventional display device
  • FIG. 2 is a flowchart of display setting adjustment in a conventional display device
  • FIG. 3 is a schematic diagram showing the architecture of the display device of an embodiment of the invention.
  • FIG. 4 is a flowchart of display setting adjustment in an embodiment of the invention.
  • FIG. 5 is a flowchart of display setting adjustment in response to environmental brightness variations according to an embodiment of the invention.
  • An embodiment of the present invention provides a display device with automatic display adjustment in response to environmental brightness variations.
  • FIG. 3 is a schematic diagram showing the architecture of the display device of an embodiment of the invention.
  • a display device 300 receiving an image signal 310 comprises a control key 320 , brightness sensors 325 , a display control circuit 330 , a memory 340 , and a display module 350 .
  • FIG. 4 is a flowchart of display setting adjustment in an embodiment of the invention.
  • step S 41 image signal 310 is retrieved from a video source and input to display device 300 .
  • step S 42 brightness and contrast of display device 300 are adjusted, first according to environmental brightness, and then to user preference when the device is first used.
  • step S 43 brightness sensors 325 detects environmental brightness when display settings are first adjusted to obtain a default brightness signal value.
  • step S 44 the display settings and default brightness signal value are stored in memory 340 for comparison and adjustment.
  • step S 45 image signal 310 is adjusted according to the display settings for an optimum display mode.
  • step S 46 the adjusted image is output to display module 350 .
  • FIG. 5 is a flowchart of display setting adjustment in response to environmental brightness variations according to an embodiment of the invention.
  • step S 51 image signal 310 is retrieved from a video source and input to display device 300 .
  • step S 52 environmental brightness is detected by brightness sensors 325 .
  • step S 53 a new brightness signal value is obtained and compared with preset environmental brightness signal values in memory 340 .
  • step S 54 a new display setting is obtained according to the comparison and the default display setting.
  • step S 55 image signal 310 is adjusted according to the new display setting for optimum display.
  • step S 56 the adjusted image is output to display module 350 .
  • An embodiment of the present invention adjusts one or multiple brightness sensors in a display device to detect environmental brightness and transmits a generated brightness signal to a display control circuit of the display device.
  • the display control circuit records, compares, and evaluates the brightness signal and adjusts the display settings of the display device accordingly.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Remote Sensing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Television Receiver Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

A display device with automatic display adjustment. One or multiple brightness sensors in a display device detect environmental brightness signals and generate a brightness signal value, transmitted to a display control circuit of the display device. The display control circuit records, compares, and evaluates the brightness signal value and adjusts the display settings of the display device accordingly.

Description

    BACKGROUND
  • The present invention relates to a display device, and in particular to a device for automatic brightness and light contrast adjustment of a display.
  • Conventional display devices provide brightness and light contrast adjustment in response to an environment around the display devices. For example, the brightness and contrast of display should be increased when environmental brightness intensifies, and decreased, when diminishes.
  • Display settings cannot be automatically adjusted by current display devices when environmental brightness is highly variable, and must be manually adjusted for better display, creating inconvenience.
  • FIG. 1 is a schematic diagram showing the architecture of a conventional display device.
  • The display device 100 receiving an image signal 110 comprises a control key 120, a display control circuit 130, a memory 140, and a display module 150.
  • FIG. 2 is a flowchart of display setting adjustment in a conventional display device.
  • In step S21, image signal 110 is retrieved from a video source and input to display device 100.
  • In step S221, brightness and contrast of display device 100 are adjusted by control key 120 when image signal 110 is input.
  • In step S222, display settings are stored in memory 140 after brightness and contrast adjustment of display device 100 is complete.
  • In step S23, display control circuit 130 adjusts image signal 110 according to the display settings for an optimum display mode.
  • In step S24, the adjusted image is output to display module 150.
  • A display device can be applied to a TV set, personal computer, portable computer, mobile phone, or LED billboard, wherein the display quality is affected by environmental brightness. The described process, however, relies on inconvenient manual adjustment and may not provide accurate results.
    • SUMMARY
  • Accordingly, an object of the present invention is to provide a display device for automatic display adjustment, adjusting display settings in accordance with environmental brightness.
  • According to the object described, an embodiment of the present invention provides a display device with automatic display adjustment. The device comprises at least one brightness sensor detecting environmental brightness, and a display control circuit processing brightness signals received from the brightness sensor and automatically adjusting display settings of a display device accordingly.
  • The display control circuit records, compares, and evaluates the brightness signals and adjusts the display settings of the display device accordingly. In addition, the device further comprises a storage medium storing display settings and received brightness signal values.
  • An embodiment of the present invention further provides a display device with automatic display adjustment. The device comprises at least one brightness sensor detecting environmental brightness to obtain an initial brightness signal value and continuing to detect environmental brightness to obtain a first brightness signal value, and a display control circuit comparing the initial brightness signal value with the first brightness signal value when environmental brightness changes, and automatically adjusting display settings of a display device accordingly.
  • In addition, the device further comprises a storage medium storing display settings and received brightness signal values.
  • A detailed description is given in the following embodiments with reference to the accompanying drawings.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
  • FIG. 1 is a schematic diagram showing the architecture of a conventional display device;
  • FIG. 2 is a flowchart of display setting adjustment in a conventional display device;
  • FIG. 3 is a schematic diagram showing the architecture of the display device of an embodiment of the invention;
  • FIG. 4 is a flowchart of display setting adjustment in an embodiment of the invention; and
  • FIG. 5 is a flowchart of display setting adjustment in response to environmental brightness variations according to an embodiment of the invention.
    • DETAILED DESCRIPTION
  • An embodiment of the present invention provides a display device with automatic display adjustment in response to environmental brightness variations.
  • FIG. 3 is a schematic diagram showing the architecture of the display device of an embodiment of the invention. A display device 300 receiving an image signal 310 comprises a control key 320, brightness sensors 325, a display control circuit 330, a memory 340, and a display module 350.
  • FIG. 4 is a flowchart of display setting adjustment in an embodiment of the invention.
  • In step S41, image signal 310 is retrieved from a video source and input to display device 300.
  • In step S42, brightness and contrast of display device 300 are adjusted, first according to environmental brightness, and then to user preference when the device is first used.
  • In step S43, brightness sensors 325 detects environmental brightness when display settings are first adjusted to obtain a default brightness signal value.
  • In step S44, the display settings and default brightness signal value are stored in memory 340 for comparison and adjustment.
  • In step S45, image signal 310 is adjusted according to the display settings for an optimum display mode.
  • In step S46, the adjusted image is output to display module 350.
  • FIG. 5 is a flowchart of display setting adjustment in response to environmental brightness variations according to an embodiment of the invention.
  • In step S51, image signal 310 is retrieved from a video source and input to display device 300.
  • In step S52, environmental brightness is detected by brightness sensors 325.
  • In step S53, a new brightness signal value is obtained and compared with preset environmental brightness signal values in memory 340.
  • In step S54, a new display setting is obtained according to the comparison and the default display setting.
  • In step S55, image signal 310 is adjusted according to the new display setting for optimum display.
  • In step S56, the adjusted image is output to display module 350,
  • An embodiment of the present invention adjusts one or multiple brightness sensors in a display device to detect environmental brightness and transmits a generated brightness signal to a display control circuit of the display device. The display control circuit records, compares, and evaluates the brightness signal and adjusts the display settings of the display device accordingly.
  • While the invention has been described by way of example and in terms of preferred embodiments, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.

Claims (11)

1. A display device with automatic display adjustment, comprising:
at least one brightness sensor, detecting environmental brightness and generating a brightness signal value; and
a display control circuit, coupled to the brightness sensor, processing the brightness signal value from the brightness sensor and automatically adjusting a default display setting of a display device accordingly.
2. The display device as claimed in claim 1, wherein the display control circuit records, compares, and evaluates the brightness signal value and adjusts the display settings of the display device accordingly.
3. The display device as claimed in claim 1 further comprising a storage medium, storing the default display setting and the brightness signal value.
4. The display device as claimed in claim 1, wherein the display device is a TV, monitor, LCD TV, plasma TV, projector, or LED billboard.
5. The display device as claimed in claim 1, wherein the brightness sensor is a circuit comprising a semiconductor element, an optical element, an integrated optical element, or a photoresistor.
6. The display device as claimed in claim 1, wherein the brightness signal is an optical signal, an analog signal, or a digital signal.
7. A display device with automatic display adjustment, comprising:
at least one brightness sensor, detecting environmental brightness to obtain an initial brightness signal value and continuing detecting the environmental brightness to obtain a first brightness signal value; and
a display control circuit, coupled to the brightness sensor, comparing the initial brightness signal value with the first brightness signal value when environmental brightness changes, and automatically adjusting display settings of a display device accordingly.
8. The display device as claimed in claim 7 further comprising a storage medium, storing the display settings and the brightness signal values.
9. The display device as claimed in claim 7, wherein the display device is a TV, monitor, LCD TV, plasma TV, projector, or LED billboard.
10. The display device as claimed in claim 7, wherein the brightness sensor is a circuit comprising a semiconductor element, an optical element, an integrated optical element, or a photoresistor.
11. The display device as claimed in claim 7, wherein the brightness signal is an optical signal, an analog signal, or a digital signal.
US10/892,868 2003-12-02 2004-07-16 Device for automatic display adjustment Abandoned US20050117062A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW092133818A TW200520549A (en) 2003-12-02 2003-12-02 Display device featuring automatic adjustment of display setting function in response to surrounding brightness
TW92133818 2003-12-02

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
US20070085861A1 (en) * 2005-10-14 2007-04-19 Innolux Display Corp. Liquid crystal display with brightness detector and method for manufacturing the same
US20080165203A1 (en) * 2007-01-05 2008-07-10 Apple Inc. Luminescence shock avoidance in display devices
US20080170131A1 (en) * 2007-01-16 2008-07-17 Samsung Electronics Co., Ltd. Display apparatus and video adjusting method thereof
US20090115751A1 (en) * 2007-11-07 2009-05-07 Young Electric Sign Company Apparatus and Method for Control of Multiple Displays
US20100053560A1 (en) * 2008-08-28 2010-03-04 Texas Instruments Incorporated Led package having improved light coupling efficiency for an optical system and method of manufacture thereof
US20120176420A1 (en) * 2009-09-28 2012-07-12 Zte Corporation Device and method for controlling screen brightness
US8605205B2 (en) 2011-08-15 2013-12-10 Microsoft Corporation Display as lighting for photos or video
US9330606B2 (en) 2012-06-08 2016-05-03 Apple Inc. Electronic device with display brightness control
WO2018112730A1 (en) * 2016-12-20 2018-06-28 Arris Enterprises Llc Display device auto brightness adjustment controlled by a source device
CN108962044A (en) * 2018-07-31 2018-12-07 广州优点影视广告有限公司 A kind of billboard with rotating function
DE102021121476B3 (en) 2021-08-18 2022-09-01 Audi Aktiengesellschaft Projection device, motor vehicle with a projection device and method for adjusting a projection parameter
US11755143B2 (en) 2007-01-03 2023-09-12 Apple Inc. Luminescence shock avoidance in display devices

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TWI354823B (en) 2007-09-17 2011-12-21 Au Optronics Corp Display device, manufacturing method thereof, cont

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US6411306B1 (en) * 1997-11-14 2002-06-25 Eastman Kodak Company Automatic luminance and contrast adustment for display device
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US6529212B2 (en) * 1997-11-14 2003-03-04 Eastman Kodak Company Automatic luminance and contrast adjustment as functions of ambient/surround luminance for display device
US6292228B1 (en) * 1998-06-29 2001-09-18 Lg Electronics Inc. Device and method for auto-adjustment of image condition in display using data representing both brightness or contrast and color temperature
US6765585B2 (en) * 2000-11-13 2004-07-20 Seiko Epson Corporation Image display system, image processing method, and program

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070085861A1 (en) * 2005-10-14 2007-04-19 Innolux Display Corp. Liquid crystal display with brightness detector and method for manufacturing the same
US11755143B2 (en) 2007-01-03 2023-09-12 Apple Inc. Luminescence shock avoidance in display devices
US9858896B2 (en) 2007-01-05 2018-01-02 Apple Inc. Luminescence shock avoidance in display devices
US9082336B2 (en) 2007-01-05 2015-07-14 Apple Inc. Luminescence shock avoidance in display devices
US9443460B2 (en) 2007-01-05 2016-09-13 Apple Inc. Luminescence shock avoidance in display devices
US8068125B2 (en) 2007-01-05 2011-11-29 Apple Inc. Luminescence shock avoidance in display devices
US10692468B2 (en) 2007-01-05 2020-06-23 Apple Inc. Luminescence shock avoidance in display devices
US10354617B2 (en) 2007-01-05 2019-07-16 Apple Inc. Luminescence shock avoidance in display devices
US8405688B2 (en) 2007-01-05 2013-03-26 Apple Inc. Luminescence shock avoidance in display devices
US11137851B2 (en) 2007-01-05 2021-10-05 Apple Inc. Luminescence shock avoidance in display devices
US8743161B2 (en) 2007-01-05 2014-06-03 Apple Inc. Luminescence shock avoidance in display devices
US20080165203A1 (en) * 2007-01-05 2008-07-10 Apple Inc. Luminescence shock avoidance in display devices
US20080170131A1 (en) * 2007-01-16 2008-07-17 Samsung Electronics Co., Ltd. Display apparatus and video adjusting method thereof
US8289301B2 (en) 2007-11-07 2012-10-16 Young Electric Sign Company Apparatus and method for control of multiple displays
US20090115751A1 (en) * 2007-11-07 2009-05-07 Young Electric Sign Company Apparatus and Method for Control of Multiple Displays
US8272744B2 (en) * 2008-08-28 2012-09-25 Texas Instruments Incorporated LED package having improved light coupling efficiency for an optical system and method of manufacture thereof
US20100053560A1 (en) * 2008-08-28 2010-03-04 Texas Instruments Incorporated Led package having improved light coupling efficiency for an optical system and method of manufacture thereof
US8797372B2 (en) * 2009-09-28 2014-08-05 Zte Corporation Device and method for controlling screen brightness
US20120176420A1 (en) * 2009-09-28 2012-07-12 Zte Corporation Device and method for controlling screen brightness
US8605205B2 (en) 2011-08-15 2013-12-10 Microsoft Corporation Display as lighting for photos or video
US9330606B2 (en) 2012-06-08 2016-05-03 Apple Inc. Electronic device with display brightness control
WO2018112730A1 (en) * 2016-12-20 2018-06-28 Arris Enterprises Llc Display device auto brightness adjustment controlled by a source device
US10681302B2 (en) 2016-12-20 2020-06-09 Arris Enterprises Llc Display device auto brightness adjustment controlled by a source device
CN108962044A (en) * 2018-07-31 2018-12-07 广州优点影视广告有限公司 A kind of billboard with rotating function
DE102021121476B3 (en) 2021-08-18 2022-09-01 Audi Aktiengesellschaft Projection device, motor vehicle with a projection device and method for adjusting a projection parameter
WO2023020800A1 (en) 2021-08-18 2023-02-23 Audi Ag Projection apparatus, motor vehicle comprising a projection apparatus, and method for adapting a projection parameter

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Owner name: QUANTA COMPUTER INC., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHIEN, TSAN-NAN;CHANG, YEN-CHUN;REEL/FRAME:015585/0175

Effective date: 20040706

STCB Information on status: application discontinuation

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